Omnistat2 thermostats are the latest generation of programmable communicating thermostats and provide precise digital temperature control over your HVAC system. Omnistat2 thermostats stand above their competition because they use advanced digital technology to learn the heating/cooling patterns of your home to control the equipment for maximum efficiency and comfort. Omnistat2 thermostats have an automatic heat/cool changeover. The Fan cycle mode periodically circulates air for comfort. The scroll wheel adjusts temperature quickly. Omnistat2 thermostats do not require batteries to retain their settings and time. They have a proximity/motion detector so that its screen lights up to one of 100 different colors when it is approached. The Omnistat2 can display outdoor temperature and humidity. It can also display HVAC usage/energy consumption by week and has a filter reminder for peak efficiency. The Omnistat2 may be used stand-alone or with a home control system. You can set back the equipment when the house is not occupied and save on your energy costs. The Omnistat2 has a built-in vacation mode feature that restores temperatures before arriving home. Omnistat2 thermostats allow you to have a different program option for every day of the week, which makes them flexible enough for homeowners who have different schedules every day. When you add an optional home control system to the Omnistat2 thermostats in your home, you get comprehensive energy management capabilities. Control your thermostat through a Console or Keypad, OmniTouch family Touchscreens, telephones (with voice response) and over the Internet using software from Leviton.